#racket on 2020-08-25 — irc logs at freenode.irclog.whitequark.org

2020-05-03 17:48 samth changed the topic of #racket to: Racket v7.7 has been released: https://blog.racket-lang.org/2020/05/racket-v7-7.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org

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19:32 <htmnc> what's a good way to (syntactically/grammatically speaking) evaluate polynomials in racket? like (lambda (a b c) (lambda (x) (+ (* a (expt x 2) (* b x) c))) seems kinda cumbersome

19:33 <htmnc> esp if there's multiple exponents greater than 1 like 3,4,5 etc anyway my question is 'does anyone know where I can see people doing such computations like crc polynomials etc' so I can get a feel for how different people tackle the issue?

19:36 <htmnc> https://stackoverflow.com/questions/12829689/calculate-polynomial-function-scheme-racket seems promising

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20:19 <htmnc> is there a mailing list for racket questions

20:21 <dzoe> htmnc: racket-users@ - see https://lists.racket-lang.org/

20:21 <htmnc> thank y ou!

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20:24 <dzoe> And to your question - I'd probably do something based on Horner's method using fold.

20:24 <dzoe> (whichever fold suits the best)

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21:00 <dustyweb> hm

21:00 <dustyweb> trying to figure out how to insert a draggable separator element for between panes

21:00 <dustyweb> eg the one between the editor and the repl/interactive area in drracket

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21:13 <dustyweb> ah!

21:13 <dustyweb> found it

21:13 <dustyweb> https://docs.racket-lang.org/framework/Panel.html

21:13 <dustyweb> the dragable panels

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